Results 61 to 70 of about 57,017 (311)

Robust Smart Superhydrophobic Cilia

Advanced Science, EarlyView.
To date, ciliated surfaces cannot withstand mechanical damage because cilia/wires are inherently fragile. By aligning magneto‐responsive, flexible, superhydrophobic microwires on the sidewall of vertical frames, the frames act as armors to protect microwires from mechanical damage; when needed, the microwires re‐align uprightly under a magnet field to ...
Chuanqi Wei, Baixue Li, Yimeng Zhang, Oleg V. Gendelman, Youhua Jiang   +4 more
wiley   +1 more source

The Scales of Gravitational Lensing

Universe, 2016
After exactly a century since the formulation of the general theory of relativity, the phenomenon of gravitational lensing is still an extremely powerful method for investigating in astrophysics and cosmology.
Francesco De Paolis, Mosè Giordano, Gabriele Ingrosso, Luigi Manni, Achille Nucita, Francesco Strafella   +5 more
doaj   +1 more source

Lensing in the Blue. II. Estimating the Sensitivity of Stratospheric Balloons to Weak Gravitational Lensing

The Astronomical Journal, 2023
The Superpressure Balloon-borne Imaging Telescope ( SuperBIT ) is a diffraction-limited, wide-field, 0.5 m, near-infrared to near-ultraviolet observatory designed to exploit the stratosphere’s space-like conditions.
Jacqueline E. McCleary, Spencer W. Everett, Mohamed M. Shaaban, Ajay S. Gill, Georgios N. Vassilakis, Eric M. Huff, Richard J. Massey, Steven J. Benton, Anthony M. Brown, Paul Clark, Bradley Holder, Aurelien A. Fraisse, Mathilde Jauzac, William C. Jones, David Lagattuta, Jason S.-Y. Leung, Lun Li, Thuy Vy T. Luu, Johanna M. Nagy, C. Barth Netterfield, Emaad Paracha, Susan F. Redmond, Jason D. Rhodes, Jürgen Schmoll, Ellen Sirks, Sut Ieng Tam   +25 more
doaj   +1 more source

A review on analytical studies in gravitational lensing

Frontiers in Physics, 2023
In this study, we review some current studies on gravitational lensing for black holes, mainly in the context of general relativity. We mainly focus on the analytical studies related to lensing with references to observational results.
Abhishek Chowdhuri, Saptaswa Ghosh, Arpan Bhattacharyya   +2 more
doaj   +1 more source

Probing the solar interior with lensed gravitational waves from known pulsars [PDF]

, 2023
Ryuichi Takahashi, S. Morisaki, Teruaki Suyama   +2 more
openalex   +1 more source

A Lensing Reconstruction of Primordial Cosmic Microwave Background Polarization [PDF]

, 2002
We discuss a possibility to directly reconstruct the CMB polarization field at the last scattering surface by accounting for modifications imposed by the gravitational lensing effect.
A. Cooray, A. Cooray, A. Cooray, Asantha Cooray, J. Guzik, J. Silk, K. Benabed, L. Knox, M. Kamionkowski, M. Kamionkowski, M. Kesden, M. Zaldarriaga, M. Zaldarriaga, M. Zaldarriaga, P.J.E. Peebles, R.A. Sunyaev, R.A. Sunyaev, U. Seljak, U. Seljak, W. Hu, W. Hu, W. Hu, W. Hu   +22 more
core   +2 more sources

Multimodal Locomotion of Soft Robots

Advanced Intelligent Systems, EarlyView.
This review comprehensively surveys recent advances in multimodal locomotion within soft robotics. Typical locomotion modes are summarized and categorized. Furthermore, the underlying mechanisms enabling multimodal locomotion are discussed and classified into three primary categories: active control‐based, reconfiguration‐based, and environment ...
Zihao Yuan, Huangwei Ji, Kai Huang, Feifei Chen, Guoying Gu   +4 more
wiley   +1 more source

Lensing Point-spread Function of Coherent Astrophysical Sources and Nontrivial Wave Effects

The Astrophysical Journal
Most research on astrophysical lensing has been conducted using the geometric optics framework, where there exists a clear concept of lensing images. However, wave optics effects can be important for coherent sources, e.g., pulsars, fast radio bursts ...
Xun Shi
doaj   +1 more source

Weak lensing of the CMB

, 2009
The cosmic microwave background (CMB) represents a unique source for the study of gravitational lensing. It is extended across the entire sky, partially polarized, located at the extreme distance of z=1100, and is thought to have the simple, underlying ...
Challinor, Anthony, Hanson, Duncan, Lewis, Antony   +2 more
core   +1 more source

Semi‐autonomous Navigation of Magnetic Microcarriers for Knee Cartilage Regeneration

Advanced Intelligent Systems, EarlyView.
Autonomous navigation of magnetic microcarriers in complex 3D environments is investigated through a semi‐autonomous strategy integrating magnetic actuation with monocular visual feedback. Real‐time global tracking is achieved via radio‐frequency‐based localization and depth estimation, while model‐based computation determines optimal steering forces ...
Kim Tien Nguyen, Cuong Manh Hoang, Jong‐Oh Park, Jayoung Kim   +3 more
wiley   +1 more source